Add allow_duplicate option

When this option is specified with state:present, it allows duplicate parameters
 in the generated sysctl.conf file.

* Addresses AAP-59588

Signed-off-by: Hideki Saito <saito@fgrep.org>

.azure-pipelines/azure-pipelines.yml

@@ -57,6 +57,21 @@ stages:
               test: units
             - name: Lint
               test: lint
+  - stage: Sanity_2_20
+    displayName: Ansible 2.20 Sanity & Units & Lint
+    dependsOn: []
+    jobs:
+      - template: templates/matrix.yml
+        parameters:
+          nameFormat: "{0}"
+          testFormat: 2.20/{0}
+          targets:
+            - name: Sanity
+              test: sanity
+            - name: Units
+              test: units
+            - name: Lint
+              test: lint
   - stage: Sanity_2_19
     displayName: Ansible 2.19 Sanity & Units & Lint
     dependsOn: []
@@ -132,6 +147,20 @@ stages:
               test: ubuntu2204
             - name: Ubuntu 24.04
               test: ubuntu2404
+  - stage: Docker_2_20
+    displayName: Docker 2.20
+    dependsOn: []
+    jobs:
+      - template: templates/matrix.yml
+        parameters:
+          testFormat: 2.20/linux/{0}/1
+          targets:
+            - name: Fedora 42
+              test: fedora42
+            - name: Ubuntu 22.04
+              test: ubuntu2204
+            - name: Ubuntu 24.04
+              test: ubuntu2404
   - stage: Docker_2_19
     displayName: Docker 2.19
     dependsOn: []
@@ -204,6 +233,22 @@ stages:
               test: freebsd/14.3
             - name: FreeBSD 13.5
               test: freebsd/13.5
+  - stage: Remote_2_20
+    displayName: Remote 2.20
+    dependsOn: []
+    jobs:
+      - template: templates/matrix.yml
+        parameters:
+          testFormat: 2.20/{0}/1
+          targets:
+            - name: RHEL 10.0
+              test: rhel/10.0
+            - name: RHEL 9.6
+              test: rhel/9.6
+            - name: FreeBSD 14.3
+              test: freebsd/14.3
+            - name: FreeBSD 13.5
+              test: freebsd/13.5
   - stage: Remote_2_19
     displayName: Remote 2.19
     dependsOn: []
@@ -228,6 +273,8 @@ stages:
         parameters:
           testFormat: 2.18/{0}/1
           targets:
+            - name: RHEL 10.0
+              test: rhel/10.0
             - name: RHEL 9.4
               test: rhel/9.4
             - name: FreeBSD 13.5
@@ -240,8 +287,9 @@ stages:
         parameters:
           testFormat: 2.17/{0}/1
           targets:
-            - name: RHEL 9.3
+            # 2.17 remote target doesn't have RHEL 9 image
-              test: rhel/9.3
+            - name: RHEL 10.0
+              test: rhel/10.0
             - name: FreeBSD 13.5
               test: freebsd/13.5
   - stage: Remote_2_16
@@ -252,10 +300,9 @@ stages:
         parameters:
           testFormat: 2.16/{0}/1
           targets:
-            - name: RHEL 8.8
+            # 2.16 remote target only has RHEL 9.6 image
-              test: rhel/8.8
+            - name: RHEL 9.6
-            - name: RHEL 9.2
+              test: rhel/9.6
-              test: rhel/9.2
 
   ## Finally
 
@@ -274,6 +321,9 @@ stages:
       - Sanity_2_19
       - Remote_2_19
       - Docker_2_19
+      - Sanity_2_20
+      - Remote_2_20
+      - Docker_2_20
       - Sanity_devel
       - Remote_devel
       - Docker_devel

changelogs/fragments/693_azp_update_20251205.yml

@@ -0,0 +1,5 @@
+---
+trivial:
+  - AZP - Update AZP matrix to follow ansible-test changes.
+  - Add ignore file for Ansible Core 2.21.
+  - Remove ignore lines for ansible-bad-import-from in 2.20 sanity tests.

plugins/modules/sysctl.py

@@ -56,6 +56,12 @@ options:
             - Verify token value with the sysctl command and set with C(-w) if necessary.
         type: bool
         default: false
+    allow_duplicate:
+        description:
+            - If C(true), allows duplicate entries in the sysctl file.
+              If C(false), it behaves the same as in versions prior to 2.1.0.
+        type: bool
+        default: false
 author:
 - David CHANIAL (@davixx)
 '''
@@ -165,7 +171,11 @@ class SysctlModule(object):
         self.fix_lines()
 
         # what do we need to do now?
-        if self.file_values[thisname] is None and self.args['state'] == "present":
+        if self.args['allow_duplicate'] and self.args['state'] == "present":
+            # with allow_duplicate we always add the new value
+            self.changed = True
+            self.write_file = True
+        elif self.file_values[thisname] is None and self.args['state'] == "present":
             self.changed = True
             self.write_file = True
         elif self.file_values[thisname] is None and self.args['state'] == "absent":
@@ -348,6 +358,7 @@ class SysctlModule(object):
     def fix_lines(self):
         checked = []
         self.fixed_lines = []
+
         for line in self.file_lines:
             if not line.strip() or line.strip().startswith(("#", ";")) or "=" not in line:
                 self.fixed_lines.append(line)
@@ -356,6 +367,13 @@ class SysctlModule(object):
             k, v = tmpline.split('=', 1)
             k = k.strip()
             v = v.strip()
+
+            if self.args['allow_duplicate'] and self.args['state'] == "present":
+                new_line = "%s=%s\n" % (k, v)
+                self.fixed_lines.append(new_line)
+                if k == self.args['name'] and v == self.args['value']:
+                    checked.append(k)
+            else:
                 if k not in checked:
                     checked.append(k)
                     if k == self.args['name']:
@@ -365,7 +383,9 @@ class SysctlModule(object):
                     else:
                         new_line = "%s=%s\n" % (k, v)
                         self.fixed_lines.append(new_line)
-
+                else:
+                    new_line = "%s=%s\n" % (k, v)
+                    self.fixed_lines.append(new_line)
         if self.args['name'] not in checked and self.args['state'] == "present":
             new_line = "%s=%s\n" % (self.args['name'], self.args['value'])
             self.fixed_lines.append(new_line)
@@ -401,7 +421,8 @@ def main():
             reload=dict(default=True, type='bool'),
             sysctl_set=dict(default=False, type='bool'),
             ignoreerrors=dict(default=False, type='bool'),
-            sysctl_file=dict(default='/etc/sysctl.conf', type='path')
+            sysctl_file=dict(default='/etc/sysctl.conf', type='path'),
+            allow_duplicate=dict(default=False, type='bool',)
         ),
         supports_check_mode=True,
         required_if=[('state', 'present', ['value'])],

tests/sanity/ignore-2.20.txt

@@ -1,10 +1 @@
 tests/utils/shippable/timing.py shebang
-plugins/action/synchronize.py pylint:ansible-bad-import-from
-plugins/callback/cgroup_perf_recap.py pylint:ansible-bad-import-from
-plugins/modules/mount.py pylint:ansible-bad-import-from
-plugins/modules/sysctl.py pylint:ansible-bad-import-from
-plugins/shell/csh.py pylint:ansible-bad-import-from
-plugins/shell/fish.py pylint:ansible-bad-import-from
-tests/unit/mock/procenv.py pylint:ansible-bad-import-from
-tests/unit/mock/yaml_helper.py pylint:ansible-bad-import-from
-tests/unit/modules/conftest.py pylint:ansible-bad-import-from

tests/sanity/ignore-2.21.txt

@@ -0,0 +1,10 @@
+tests/utils/shippable/timing.py shebang
+plugins/action/synchronize.py pylint:ansible-bad-import-from
+plugins/callback/cgroup_perf_recap.py pylint:ansible-bad-import-from
+plugins/modules/mount.py pylint:ansible-bad-import-from
+plugins/modules/sysctl.py pylint:ansible-bad-import-from
+plugins/shell/csh.py pylint:ansible-bad-import-from
+plugins/shell/fish.py pylint:ansible-bad-import-from
+tests/unit/mock/procenv.py pylint:ansible-bad-import-from
+tests/unit/mock/yaml_helper.py pylint:ansible-bad-import-from
+tests/unit/modules/conftest.py pylint:ansible-bad-import-from